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Launch Java process programmatically in Java
In some cases while working on some automation testcase, developers would like to launch Java process programmatically so that the tests can be ran without manual intervention. Java provides such methods to achieve this. ProcessBuilder can be used to build a Java process which can be launched when everything is ready. Basically it can take a list of parameters which are similar to the command line options/arguments. For example, if you want to launch a Java process, you can do followi...
JAVA,PROCESSBUILDER,COMMAND LINE 2016-04-27 04:03:30
A JS1K competition demo for 2012
JS1K is a website which hosts some competitions to attract geeks from the world to create JS apps which are less than 1K (1024 bytes). The object of this competition is to create a cool JavaScript "application" no larger than 1k. Starting out as a joke, the first version ended with a serious amount of submissions, prizes and quality.Recently, I revised a previous project of mine and compressed it to 1018 bytes and submitted it. It is an analog clock. The code is shown below:w=c.width;h=c...
JS1K,HTML5,Competition,Analog clock,Love 2012-03-13 12:17:40
My frequently used Linux commands
In our day to day work. We may have many chances working on Linux/Unix systems. There are many things we may need to do, checking logs, navigating in directories, creating file or installing software. We may use many commands to complete the work, such as ls, mkdir, cd etc. Below are my frequently used Linux commands or programs recently: pwd : print working directory, sometimes I need to check which working directory I am in in order to know where to go next. ls : List current directory files,...
Twenty Years of Linux according to Linus Torvalds
Summary: In an interview, Linus Torvalds talks about Linux’s multiple 20th birthdays and life with Linux.The Linux Foundation, the nonprofit organization dedicated to accelerating the growth of Linux, started the celebration of Linux’s 20th anniversary at the Linux Foundation Collaboration Summit, but when is Linux’s real birthday? Is it August 25th, when Linus announced the project? October 5th 1991, when 0.02, the first public release was made? I decided to go st...
Linux,Linus Tonalds,Interview,Developmen 2011-09-28 09:39:10
Which programming language should I learn first?
Recently I saw somebody asked a question in a forum, the question is "Which programming language should I learn first?". Then someone answered this question. His answer:Depends. To program in an expressive and powerful language: PythonTo get a website up quickly: PHPTo mingle with programmers who call themselves “rockstarsâ€: Ruby.To really learn to program: C.To achieve enlightenment: Scheme.To feel depressed: SQLTo drop a chromosome: Microsoft Visual BasicTo get a guaranteed, m...
Programming language,Learn,JavaScript,C 2012-04-29 02:59:17
Implementation of +,-,*,/ with bitwise operator
There is a question asked on Stackoverflow : Divide a number by 3 without using *,/,+,-,% operators. This question is an Oracle interview question. Some people give excellent answers. You can go there and take a look. Usually we need to use bitwise operators to do this kind of implementations. Here I want to show you ways to implement +,-,*,/ with bitwise operators. A bitwise operation operates on one or more bit patterns or binary numerals at the level of their individual bits. It is a fast, pr...
Bitwise operator,Shift,Add,Subtract,Multiplication,Division 2012-08-05 01:52:47
Tips of Drafting an R Markdown Document
When presenting the data summary and exploratory analysis, we used to copy a lot of tables, charts from Rstudio to PowerPoint, which makes the presentation preparation painful. It becomes essential for data scientists to make use of better reporting tools, such as R markdown, Jupyter notebook to prepare the analysis presentation in a more efficient and organized way. Of course, we want this to be reproducible! In this post, I would like to share some tips of using the right tools to draw tables,...
R PROGRAMMING 2020-11-01 23:09:45
Interesting program comments
With Google Code Search, we can search some interesting code snippets comments. Some of them are interesting. Programming is not a boring task if you have a good attitude. Lets see some funny comments. Have fun.Not very confident :Dragon everywhere :One more angry comment :I told them earlier:F**K:Don't look following programs:Author : 陈皓 Source : http://coolshell.cn/articles/290.html...
Programming,comment,interesting 2012-04-23 06:51:05
10 controversial programming opinions?
Every programmer has his/her own understanding about programming. His/her opinion may or may not be agreed by others since they may face different programming environment. Let's see ten controversial programming opinions. You may agree with these opinions or you may not agree with them or you have your own opinion. You can freely share with others by commenting below.1) The only “best practice†you should be using all the time is “Use Your Brainâ€.2) Programme...
Programming,Opinion,Controversial 2012-05-12 11:02:18
Good bye, IE8, Google Apps leaves you
Google Apps team annouced not supporting IE 8 and lower version of IE, this will affect every Google App user including commercial, education and government. The time for leaving IE 8 is 15 November, at that time, IE 10 will be released for a few weeks. Google Apps team explained here: As we announced last year, we support the latest version of Google Chrome (which automatically updates whenever it detects that a new version of the browser is available) as well as the current and prior major re...
IE8, Google apps 2012-09-17 11:33:00
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